Mark Dickinson <dicki...@gmail.com> added the comment:

> all it does is give information about the FPU settings at the time that
> Python was compiled

Hmm.  It's actually a bit better than that:  as far as I can tell, it reflects 
the value of FLT_ROUNDS at the time that Python is started (when the sys module 
is initialized).  OTOH, FLT_ROUNDS on my machine is #define'd to be 1, in 
violation of the C standards.

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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue12245>
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